New study says drinking 25 cups of coffee per day no worse than drinking 1

The study found that individuals that consumed 25 cups of coffee a day, were no more likely to suffer from this than people who drank just one.

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If you’re reading this on your commute, you’re probably one of the many professionals who wish that experts would make up their mind about the health merits and danger of excessive coffee consumption. Just this March, a paper titled Long-term coffee consumption, caffeine metabolism genetics, and risk of cardiovascular disease: a prospective analysis of up to 347,077 individuals and 8368 cases, set the internet ablaze by declaring the final word on how much coffee is too much coffee.

The researchers found that consuming more than six cups of coffee a day increases a person’s risk for cardiovascular disease by 22%. “Heavy coffee consumption was associated with a modest increase in CVD risk, but this association was unaffected by genetic variants influencing caffeine metabolism,” the authors explained. Bummer? Well, it depends on who you ask.


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“Well, I’ll tell you when I’ve had enough!”

An even newer study pointedly titled, Coffee not as bad for heart and circulatory system as previously thought, examines data derived from over 8,000 people, and concludes that individuals who consumed 25 cups of coffee a day were no more likely to suffer from stiffening of the arteries than an individual who consumed less than one cup a day. The report will debut at The British Cardiovascular Society Conference.

Researchers from the Queen Mary University of London took a group of 8,412 people, then split them up into three groups. Group one included the coffee light weights or the individuals who reported drinking only one cup a day. The second group said they typically drank between one and three cups of coffee per day, and the third group consumed at least three cups of coffee a day, with some in this group reporting numbers as high as 25 cups a day. Anyone that reported a number higher than 25 however, were not included in the study.

All the respondents were subject to MRI heart scans and infrared pulse wave tests, with adjustments made to account for age, gender, ethnicity, weight, smoking status, blood pressure, diet, and degree of alcohol consumption.

“What we found was that drinking more than three cups of coffee a day did not significantly increase the stiffness of blood vessels compared to people who drink one cup or less a day,” lead data analyst at Queen Mary University of London, Kenneth Fung, explained to CNN.

Despite the body of scientific literature that has suggested the contrary in the past, the researchers of Queen Mary University, remain confident that habitual coffee consumption can be enjoyed as a part of a healthy lifestyle.


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CW Headley|is a reporter for Ladders and can be reached at cheadley@theladders.com.